/*
 * Copyright (C) 2014 Apple Inc. All Rights Reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#pragma once

#include "include/JavaScriptCore/runtime/TypeSet.h"

namespace JSC {

    enum TypeProfilerGlobalIDFlags {
        TypeProfilerNeedsUniqueIDGeneration = -1,
        TypeProfilerNoGlobalIDExists = -2,
        TypeProfilerReturnStatement = -3
    };

    typedef intptr_t GlobalVariableID;

    class TypeLocation {
    public:
        TypeLocation()
                : m_lastSeenType(TypeNothing), m_divotForFunctionOffsetIfReturnStatement(UINT_MAX), m_instructionTypeSet(TypeSet::create()),
                  m_globalTypeSet(nullptr) {
        }

        GlobalVariableID m_globalVariableID;
        RuntimeType m_lastSeenType;
        intptr_t m_sourceID;
        unsigned m_divotStart;
        unsigned m_divotEnd;
        unsigned m_divotForFunctionOffsetIfReturnStatement;
        RefPtr<TypeSet> m_instructionTypeSet;
        RefPtr<TypeSet> m_globalTypeSet;
    };

} // namespace JSC
